The database and the operations can be relatively slow.This often requires extra effort to set up with CI servers. You will need to keep the database running somewhere.

The testing environment can be quite complex.

This may work well for some projects, but has some limitations: This involves writing code that runs at the beginning and end of every test case/suite to ensure that the database is in a clean predictable state. Typically, for integration or end-to-end tests, your scripts will need to connect to a real dedicated database for testing purposes. For a more comprehensive overview of Node.js integration tests, see this article.

You will see how the mongo-unit package helps with integration and end-to-end testing in Node.js. In this article, you will learn how to write integration and end-to-end tests easily for your Node.js and MongoDB application that run on real instances of the database all without needing to set up an elaborate environment or complicated setup/teardown code. If you happen to be one of the many people using them, you are in luck. Node.js and MongoDB together form one of the most popular duos of recent times. These parts may be working just fine on their own, but in a large system, units of code rarely work separately. Integration and end-to-end tests give you that extra confidence by testing parts of your application together. While many developers focus on 100% coverage with unit tests, it is important that the code you write is not just tested in isolation. Proper tests can easily overcome a lot of shortcomings that developers may point out about Node.js development solutions. Getting the number of documents in the collection.Īwait moviesCollection.Tests are an essential part of building a robust Node.js application. const client = new MongoClient(uri, ) Ĭonsole.log('Document from db: ', document) In case of using TLS, an extra parameter tls: true can be provided to the MongoClient constructor. The URI should have the host and all the credentials required for connecting to the database. The simplest way to connect to your database is by using the URI with all the required data: user, password, database, host, port, and other options such as replica set, TLS, or authSource. The Node.js MongoDB library supports this setting. This also helps to ensure the client is connected to the intended server. Connecting to your database with TLS encrypts all network data between the MongoDB server and your client.

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